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Test ID ZNS Zinc, Serum

Useful For

Detecting zinc deficiency

Method Name

Dynamic Reaction Cell-Inductively Coupled Plasma-Mass Spectrometry (DRC-ICP-MS)

Reporting Name

Zinc, S

Specimen Type

Serum


Specimen Required


Collection Container/Tube: 6-mL Plain, royal blue-top Vacutainer plastic trace element blood collection tube (Supply T184)

Submission Container/Tube: 7-mL Mayo metal-free, screw-capped, polypropylene vial (Supply T173)

Specimen Volume: 0.8 mL

Collection Instructions:

1. Allow the specimen to clot for 30 minutes; then centrifuge the specimen to separate serum from the cellular fraction. Serum must be removed from cellular fraction within 4 hours of specimen collection. Avoid hemolysis.

2. Remove the stopper. Carefully pour specimen into a Mayo metal-free, polypropylene vial, avoiding transfer of the cellular components of blood. Do not insert a pipet into the serum to accomplish transfer, and do not ream the specimen with a wooden stick to assist with serum transfer.

3. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.

Additional Information:

1. High concentrations of gadolinium, iodine, and barium are known to interfere with most metals tests. If gadolinium-, iodine-, or barium-containing contrast media has been administered, a specimen should not be collected for 96 hours.

2. If ordering the trace element blood collection tube from BD, order catalog #368380.


Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Ambient  14 days
  Frozen  14 days

Reference Values

0-10 years: 0.60-1.20 mcg/mL

≥11 years: 0.66-1.10 mcg/mL

Day(s) and Time(s) Performed

Monday; 2 p.m.; Tuesday through Friday; 5 p.m.; Saturday; 2 p.m.

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

84630

LOINC Code Information

Test ID Test Order Name Order LOINC Value
ZNS Zinc, S 5763-8

 

Result ID Test Result Name Result LOINC Value
8620 Zinc, S 5763-8

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

Forms

If not ordering electronically, complete, print, and send a General Request Form (T239) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/general-request-form.pdf).